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Voice actor, writer, and general animation jack-of-all-trades Bob Peterson began his career working as a layout artist and animator for Pixar in 1994. Working up the ranks at the company, Peterson would eventually write the screenplay for 2003's Finding Nemo, for which he was nominated for an Oscar. He would also provide the voice of Mr. Ray in Finding Nemo, as well as for characters in Monsters, Inc. and other feature films, but Peterson would earn even more accolades for his work as a writer and co-director on 2009's Up, which earned him his second Oscar nomination for Best Original Screenplay.